Free Roth IRA Calculator Online
Use this free Roth IRA calculator online to project your tax-free retirement balance. See how annual contributions compound over decades — and how much of that growth you keep without owing a dollar in taxes at withdrawal. Completely free, no account needed.
Projected Roth IRA Balance
Enter your details to calculate
Roth IRA vs. Traditional IRA — Key Differences
| Factor | Roth IRA | Traditional IRA |
|---|---|---|
| Tax on contributions | After-tax (no deduction) | Pre-tax (deductible) |
| Tax on withdrawals | Tax-free | Taxed as ordinary income |
| 2024 contribution limit | $7,000 / $8,000 (50+) | $7,000 / $8,000 (50+) |
| Income limit (2024) | $161k single / $240k married | None (deductibility phased out) |
| Required minimum distributions | None during lifetime | Start at age 73 |
| Early withdrawal of contributions | Anytime, penalty-free | 10% penalty before 59½ |
| Best if you expect taxes to be... | Higher in retirement | Lower in retirement |
Limits are per IRS 2024 guidelines. Income phase-outs and rules can change — verify at IRS.gov before contributing.
Why the Roth IRA Is So Powerful
The Roth IRA's core advantage is simple: you contribute after-tax dollars today, and every dollar of growth — including dividends, capital gains, and interest — comes out completely tax-free in retirement. This free online Roth IRA calculator shows you the full balance you get to keep, not a pre-tax number you'll share with the IRS.
For a 30-year-old in the 22% tax bracket contributing $7,000/year until age 65, the Roth IRA typically produces a better outcome than a traditional IRA unless tax rates drop significantly in retirement. At 7% growth, $7,000/year compounds to about $1,000,000 over 35 years. With a Roth IRA, you withdraw all $1,000,000 tax-free. With a traditional IRA at a 22% retirement tax rate, you'd net only $780,000 — a $220,000 difference. Calculate online to see how this applies to your own situation.
The Roth IRA also has no Required Minimum Distributions (RMDs) during the account owner's lifetime, unlike traditional IRAs which force withdrawals starting at 73. This makes Roth accounts excellent for wealth transfer and estate planning. Our free Roth IRA calculator lets you model these scenarios online at no cost.
Maxing Out a Roth IRA — 35-Year Example
Contributing the 2024 maximum of $7,000/year from age 30 to 65 (35 years) at different return rates:
All withdrawals tax-free. Total contributions: $245,000. Use our free Roth IRA calculator online to model your own scenario.
4 Ways to Get More Out of Your Roth IRA
Invest in Growth Assets Inside the Roth
Because Roth IRA withdrawals are tax-free, the higher your returns, the more you benefit from the tax exemption. Put your highest-growth assets — small-cap stocks, emerging markets, individual growth stocks — inside the Roth. Put bonds and stable value funds in taxable accounts where tax treatment matters less.
Contribute Early in the Calendar Year
The IRS allows prior-year Roth IRA contributions until April 15. If you wait until April 15 each year instead of contributing January 1, you lose about 15.5 months of compound growth annually. Over 30 years, that delay can cost $50,000–$100,000 depending on your contribution level and return rate.
Use the Backdoor Roth If You Earn Too Much
High earners above the Roth IRA income limit can still access tax-free growth through the Backdoor Roth: contribute to a non-deductible traditional IRA, then immediately convert to Roth. As long as you have no other traditional IRA assets (due to the pro-rata rule), the tax cost is minimal. Use the Roth IRA calculator to see how much tax-free growth you'd generate over time.
Open a Roth IRA for Your Kids
Any child with earned income (from a job, not allowance) can open and fund a custodial Roth IRA. Contribute $3,000/year from age 15 to 22 (just 7 years), and at a 7% return, they'll have over $500,000 at age 65 — entirely tax-free. It's one of the greatest financial gifts you can give a young person.
Frequently Asked Questions
Disclaimer: This free online Roth IRA calculator is for educational purposes only. Contribution limits, income phase-outs, and tax rules can change. Results assume a fixed annual return that is not guaranteed. The calculator does not account for taxes on conversions, the pro-rata rule, or changes in tax law. Consult a licensed financial advisor or CPA before making IRA contribution or conversion decisions.
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